Least and Most Polluting Cars, 2010

The ACEEE's Green Book®, a buyer's guide to
environmentally friendly passenger vehicles, rates cars according to
their emissions and fuel consumption, and publishes an annual list of
the "greenest" and "meanest" (i.e., most
polluting).

Greenest
vehicles

MPG:city

MPG:hwy.

Green1score

1. Honda Civic GX

24

36

57

2. Toyota Prius

51

48

52

3. Honda Civic Hybrid

40

45

51

4. Smart For Two Convertible/Coupe

33

41

50

5. Honda Insight

40

43

50

6. Ford Fusion Hybrid/Mercury Milan Hybrid

41

36

47

7. Toyota Yaris

29

36

46

8. Nissan Altima Hybrid

35

33

46

9. Mini Cooper

28

37

45

10. Chevrolet Cobalt XFE/Pontiac G5 XFE

25

37

45

Meanest
vehicles

MPG:city

MPG:hwy.

Green1score

1. Lamborghini Murcielago

18

13

18

2. Bugatti Veyron

8

14

18

3. Bentley Azure/Brooklands

9

15

18

4. Maybach 57S

10

16

19

5. Dodge Ram 2500 Mega Cab

12

17

20

6. Ford F-250

12

17

20

7. Bentley Continental

10

17

20

8. Ferrari 612 Scaglietti

9

16

20

9. Mercedes-Benz ML 63 AMG

11

15

20

10. Chevrolet Suburban K2500

13

18

20

NOTE: MPG = miles per gallon. 1. The green score runs
on a scale from 0 to 100. The top vehicle this year scored a 57, and the
worst gas-guzzler scored 14. The score is based on automakers' test
results for fuel economy and emissions as reported to the EPA, as well as
an estimate of pollution from vehicle manufacturing, from the production
and distribution of fuel, and from vehicle tailpipes. It also factors in
air pollution. Source: Web: American Council for an
Energy-Efficient Economy (ACEEE).